16636332428 has 6 divisors (see below), whose sum is σ = 29113581756. Its totient is φ = 8318166212.

The previous prime is 16636332367. The next prime is 16636332439. The reversal of 16636332428 is 82423363661.

It is a super-3 number, since 3×16636332428³ (a number of 32 digits) contains 333 as substring.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 2079541550 + ... + 2079541557.

It is an arithmetic number, because the mean of its divisors is an integer number (4852263626).

Almost surely, 2^16636332428 is an apocalyptic number.

It is an amenable number.

16636332428 is a deficient number, since it is larger than the sum of its proper divisors (12477249328).

16636332428 is a wasteful number, since it uses less digits than its factorization.

16636332428 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4159083111 (or 4159083109 counting only the distinct ones).

The product of its digits is 746496, while the sum is 44.

The spelling of 16636332428 in words is "sixteen billion, six hundred thirty-six million, three hundred thirty-two thousand, four hundred twenty-eight".